Knoxville Weather Forecast

    • 62
    • 79

    Chance Thunderstorms

    • 61
    • 84

    Chance Thunderstorms

    • 67
    • 87

    Mostly Sunny

    • 66
    • 87

    Thunderstorms Likely

    • 53
    • 83

    Rain Showers Likely

    • 49
    • 71

    Partly Sunny

Today 15 May Knox

Mostly sunny. Highs in the upper 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 15 May Knox

Mostly clear in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Lows in the lower 60s. Southeast Winds around 10 Mph, becoming southwest after midnight. Gusts up to 25 Mph. Chance of rain 50 percent.

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Knoxville Temperature Statistics

May Temperature

Galesburg Municipal Airport (7.5 miles)

  • Lowest 7 May, 2026

    32.7 °F

  • Average May

    54.9 °F

  • Highest 12 May, 2026

    81.3 °F

Climate (2021–Present)

Galesburg Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    62.3 °F
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